As heavy rain falls more frequently, the land alongside a river has a greater effect on the waterway’s nutrient levels—for better or worse.
DDT and its breakdown products permeate lake sediments decades after the pesticide was banned.
Scientists know that low-oxygen dead zones are growing worldwide. New research sheds light on what that will mean for estuary systems if trends continue.
Sediments from a lake in Switzerland reveal that ancient Romans triggered dead zones caused by the runoff of nutrients. Sound familiar?
Clear air policies have led to dramatic reductions in acid rain and improved ecosystem health, but it now appears that climate change could counteract those gains.
Scientists look at a possible connection between increased wealth and decreased water pollution in Louisiana.
Scientists testing the quality of floodwater in a Florida city find potentially harmful bacteria.
Satellite and ground-based measurements show a correlation between urban growth and increased levels of pollutants.